POTAMH 



C. IOSTOMA, Pfr. PI. 84, fig. 7'-'. 



<hrll strongly longitudinally ribbed and varicose, spirally stria 

 Stronger <m thi be; chocolate color, with a narrow central 



- So. 

 ,,,,,. an ,i much more rugose than the preceding species. 



, 11V is not characteristic. This is probably t 

 Midland G //-A v/. *.wli. <% 74), a white variety of it Many 

 rffce figures in d'OrbignyV'Cuba" a* BO poorly drawn that tl 



nitiull te wmewhat Difficult, yet I think C. Lavateana, d'Oi-b. 

 (fig";: . may be referred here, rather than to C. scalar,,,,, *. 

 ,, A/Da Costa. PL 34, figs. 80-82. 



11 narrowly elongated, with numerous rounded longitu.li 

 fibi .nor. or less beaded by several spiral riblets, suture well 

 ; chertnul or chocolate color, sometimes white-banded. 

 , 15 mill. 



C ,,,nl.i.,^ C.B. Ad. (fig. 81), is a vatietyin which the spiral 

 sculpt urei. mure strongly developed, making the surface i 

 Qodulous; other synonyms are 0. 8 a/rmcida, Morelet (fig. 82), ai 



/',/;/;;. Sdirannn. 



( ' TI-IIIMTA. Steams. PI. 34, fig. 83. 



Kal l 1(M . thin, purplish white to chocolate, often with an mconspiC 

 ao ua central white line; whorls convex, with thin, numerous 

 whitish longitudinal rihs, ending below the periphery in a spiral 

 thread, no other spiral sculpture, suture deeply grooved. 



Section AIMIANISTYLUS, Fischer, 1884. 



i < iiAiinoNiKKi. IVtit. IM. :4, fig. 96. 



Thin corneous brown, smooth, with distant rode, low, longi 

 n:l l plications : Whorlfl rather flat, with a spiral thread at the suture, 

 forming a carina on the body whorl, base spirally striated 



gth,l-75in. Bo 



a ,, t ,i,;,n,,t.,, Mrtralfr. is helirv.-d to lu- identi.'al : it was the 

 HIM pui.li>lu'd. but has n-.t lu-m illustrated. 



anrsmiB, IM.il. Pi. B4, ftgB.97, 



I'l.i,, r,,ri,t oorneoua, sm.M.th. with low rounded rib* and mbeqnaJ 

 interepaoibody whorl obtusely angulated at the periphery, base 

 thj Bometiinesfl fcinl dMrtnul line below the peripb 



